Smoke condenser



, June 17, 1930.

SMOKE CONDENSER Filed Sept. 22, 1928 2 Sheets-Sheet 1 JMHMZ, 41 deem June 17, 1930. J H 1,765,159

SMOKE CONDENSER Fild Sept. 22. 1928 z Sheets-Sheet 2 f? J2U Qwumtoz Patented June 17, 1930 res a JOSEPH M. HILL, or OGDEN, UTAH SMOKE CONDENSER Application filed September 22, 1928.

This invention relates to improvements in smoke condensers or devices for removing smoke from furnace and boiler gases and the like.

One object of the invention is to increase the efficiency of the apparatus. Specifically, the invention contemplates the provision of a condenser casing having a tortuous gas passage formed therein by a plurality of vertically spaced water receptacles, the gases passing through said passage being directly in contact with the Water in the receptacles, as Well as in direct contact with the bottom surface of all except one of said receptacles. As a consequence, the heated gases raise the temperature of the water to the boiling point, thereby generating'steam which rises in said passage and the smoke coming in contact therewith causes a condensation and precipitation of the objectionable constituents of the smoke into said receptacles. Such condensate is heavier than water and collects or accumulates in the receptacles from which it can be withdrawn and collected in a settling tank that is provided with means for separately drawing off the lighter and the heavier constituents of the condensate or sediment.

In order that the efficiency of the condenser may be increased, means are provided for agitating the water in the receptacles whereby a spray will be projected into the gas passage. These agitators need only be utilized when the fire in the boiler or furnace is started and until the temperature of the water in the receptacles has been brought to the boiling point. In addition, means are also provided for circulating a heating medium through the water in the receptacles so that the temperature thereofmay be quickly raised and easily maintained at its boiling point.

With these and other objects in view, the invention consists in certain novel details of construction and combinations and arrange- Serial No. 307,563.

ments of parts, all as will hereinafter be more fully described and the novelfeatures thereof particularly pointed out in the appended claims.

In the acco npanying drawings, 50

.ligure 1 1s a side view, partly in section, of an apparatus embodying the present improvements; and

Fig. 2 is an end view..

In the prefered embodiment of the invention illustrated in the drawings, the furnace is connected by its smoke pipe 12 to casing 11 of the condenser. lVithin said casing there is a series of superposed receptacles13 spaced vertically above one another to form a tortuous passage 14 to which smoke is delivered by the pipe 12. Water is supplied by a pipe 15 from any suitable source to said receptacles, the supply being eontrolled by floats 16 for actuating valves 17 in said water pipe.

Gases passing through passage 14 escape through stack 18, the soot having been practically eliminated therefrom. This is accomplished with the greatest efficiencyf with the present apparatus because ofseveral features which will now be described in detail. Each of the-receptacles is provided with revoluble agitators 19 in the form of circular wire hoops or drums the width of the recep= tacles, mounted on shafts 20-whose ends at the exterior of the casing are provided with pulleys 21, 21, 21". The pulley on the agitator in the lowermost receptacle is connected by a belt 22 to a motorv 23 so'as to be rotated in the direction in which the gases pass through the casing. Pulley 21 on the uppermost agitator is connected to pulley 21 by belt 24, so to be driven in the same direction, and pulley 21, on the intermediate agitator, is connected by belt 25 to the'other pulleys,- so as to be driven in a reverse direction because the flow of the gases is reversed between the intermediate and upper receptacles, In other words, the agitators all revolve in the same direction as that in which the gases flow.

Each of the water receptacles 13 is also provided with coils or pipes 26 connected to the water jacket or other water heating element of the furnace by pipes 27 so that hot water is circulated through the water in said receptacles. /Vhen the furnace is first placed in operation, the agitators are driven by motor 23 for the purpose of throwing sprays of water into the path of gasespassing through the condenser casing. This effects a precipitation of the soot and other particles of matter into the several trays. After the fire has gained sufficient headway, hot water circulating through coils 26 raises the temperature of the water in receptacles 13 to the boiling point with the result that steam or vapor constantly rises in the gas passages and as this steam will efiiciently condense the smoke, the agitators may be rendered inoperative. This heating of the water in said receptacles is also augmented by the fact that the heated gases passing through the condenser casing impinge directly against the bottoms of said receptacles as well as against the surface of the water therein.

As the condensate accumulates in receptacles 13, it is drawn off the lowermost receptacle through a drain pipe 28 into asettling tank 29 below the casing. Condensate or sediment in the other receptacles is drawn off through pipe 30, connected to the bottoms of said receptacles, and deposited in said tank 29. It is then permitted to settle, the heavier constituents gravitating to the lower portion of the tank. After'thus separating, the lighter constituents in the upper portion of the tank can be drawn oii' through a drainage pipe 31 while the heavier cgnstituents are drawn off through a pipe 3 What is claimed is:

1. In a device for removing smoke from furnace or boiler gases, a casing having an inlet nearits bottom adapted to communicate with the furnace or boiler and an out let near its top adapted to communicate with a stack or fiue, a series of vertically spaced water receptacles in said casing forming a passage between them through the casing through which gases from the furnace or boiler pass to said stack, means for supplylng water to said receptacles, means for circulating a heating medium through water 1n said receptacles, and means for agitating the water in said receptacles to project a spray of water from the receptacles into the gas passage.

' 2. In a device for removing smoke from furnace or boiler gases, a casing having an inlet near its bottom adapted to communicate with the furnace or boiler and an outlet near its top adapted to communicate with Mpv 

